Touch sensor and display apparatus

Abstract

A touch sensor and a display apparatus are disclosed. The touch sensor includes a first opening region, first touch electrodes, second touch electrodes, and a conducting structure. The first touch electrodes include first touch sub-electrodes; the second touch electrodes include second touch sub-electrodes; each of a first group of second touch electrodes further includes a transition touch electrode; a virtual straight line passing through the center of the first opening region respectively intersects with two sides of the transition touch electrode at a first position and a second position, and a distance between the first position and the second position is less than a maximum width of at least one of the second touch sub-electrodes; and the conducting structure at least partially surrounds an edge of the first opening region, and is connected with the transition touch electrode in parallel and electrically.

What is claimed is: 
     
       1. A touch sensor, comprising: a first opening region, a plurality of first touch electrodes, a plurality of second touch electrodes, and a first conducting structure,
 wherein a center of the first opening region and a center of the touch sensor do not coincide; 
 the plurality of first touch electrodes respectively extend along a first direction, and at least one of the plurality of first touch electrodes comprises a plurality of first touch sub-electrodes arranged side by side in the first direction and electrically connected with each other; 
 the plurality of second touch electrodes respectively extend along a second direction intersecting with the first direction, and at least one of the plurality of second touch electrodes comprises a plurality of second touch sub-electrodes arranged side by side in the second direction and electrically connected with each other; 
 the plurality of first touch electrodes are arranged side by side along the second direction, and the plurality of second touch electrodes are arranged side by side along the first direction; 
 the plurality of first touch sub-electrodes and the plurality of second touch sub-electrodes together at least partially surround the first opening region; 
 each of a first group of second touch electrodes in the plurality of second touch electrodes further comprises a first transition touch electrode; 
 the first transition touch electrode extends along the second direction, and partially surrounds the first opening region along the second direction; 
 a virtual straight line passing through the center of the first opening region and extending along the first direction respectively intersects with two sides of the transition touch electrode opposite in the first direction at a first position and a second position, and a distance between the first position and the second position is less than a maximum width of at least one of the plurality of second touch sub-electrodes in the first direction; and 
 the first conducting structure is positioned on a surface of the first transition touch electrode, at least partially surrounds an edge of the first opening region, and is connected with the first transition touch electrode in parallel and electrically. 
 
     
     
       2. The touch sensor according to  claim 1 , wherein a maximum length of the first transition touch electrode in the second direction is greater than a maximum length of at least one of the plurality of second touch sub-electrodes in the second direction. 
     
     
       3. The touch sensor according to  claim 1 , wherein at least one of the plurality of first touch electrodes is separated by the first opening region into a first electrode portion and a second electrode portion;
 each of the first electrode portion and the second electrode portion comprises at least one of the first touch sub-electrodes; 
 the first electrode portion and the second electrode portion are positioned on both sides of the first opening region in the first direction; 
 at least part of the first transition touch electrode is positioned between the first opening region and the second electrode portion; 
 the first transition touch electrode has a first side away from the second electrode portion and a second side close to the second electrode portion in the first direction; and 
 the first conducting structure is arranged at an edge of the first transition touch electrode on the first side. 
 
     
     
       4. The touch sensor according to  claim 3 , further comprising a second conducting structure,
 wherein at least one of the plurality of first touch electrodes further comprises a second transition touch electrode; 
 the first electrode portion and the second electrode portion are electrically connected with each other at least via the second transition touch electrode; 
 the second transition touch electrode comprises a portion at least positioned between the first opening region and the first transition touch electrode; and 
 the second conducting structure is at least arranged on a surface of the portion of the second transition touch electrode at least positioned between the first opening region and the first transition touch electrode, and is connected with the second transition touch electrode in parallel and electrically. 
 
     
     
       5. The touch sensor according to  claim 4 , further comprising a second opening region,
 wherein at least part of the second transition touch electrode is positioned between the first opening region and the second opening region; 
 the second transition touch electrode comprises a first transition touch sub-electrode and a second transition touch sub-electrode arranged side by side in the first direction and electrically connected with each other; and 
 the first electrode portion is electrically connected with the first transition touch sub-electrode, and the second electrode portion is electrically connected with the second transition touch sub-electrode. 
 
     
     
       6. The touch sensor according to  claim 5 , wherein the second transition touch sub-electrode fully surrounds the first opening region; and
 the second conducting structure is arranged on a surface of the second transition touch sub-electrode, at least partially surrounds the first opening region, and is connected with the second transition touch sub-electrode in parallel and electrically. 
 
     
     
       7. The touch sensor according to  claim 6 , wherein the second transition touch sub-electrode comprises an inner edge and an outer edge; and
 compared with the inner edge of the second transition touch sub-electrode, the second conducting structure is closer to the outer edge of the second transition touch sub-electrode, and extends along the outer edge of the second transition touch sub-electrode. 
 
     
     
       8. The touch sensor according to  claim 5 , further comprising a third conducting structure, wherein the third conducting structure is arranged on a surface of the first transition touch sub-electrode, and is connected with the first transition touch sub-electrode in parallel and electrically. 
     
     
       9. The touch sensor according to  claim 8 , wherein the first transition touch sub-electrode is arranged on a side of a center of the second opening region close to the first opening region, and partially surrounds the second opening region;
 the first transition touch sub-electrode comprises a third side close to the second opening region and a fourth side away from the second opening region; and 
 the third conducting structure extends at least along an edge of the first transition touch sub-electrode positioned on the third side. 
 
     
     
       10. The touch sensor according to  claim 9 , further comprising a jumper conductor wire, wherein the first transition touch sub-electrode and the first electrode portion are electrically connected via the jumper conductor wire; and
 the third conducting structure is directly connected with the jumper conductor wire. 
 
     
     
       11. The touch sensor according to  claim 5 , further comprising a fourth conducting structure,
 wherein each of a second group of second touch electrodes in the plurality of second touch electrodes comprises a third transition touch electrode; 
 the fourth conducting structure is arranged on a surface of the third transition touch electrode, is connected with the third transition touch electrode in parallel and electrically, and extends along at least one of two opposite edges of the third transition touch electrode in the first direction. 
 
     
     
       12. The touch sensor according to  claim 11 , wherein the third transition touch electrode comprises a fifth side close to the first transition touch sub-electrode and a sixth side far away from the first transition touch sub-electrode in the first direction;
 an edge of the third transition touch electrode positioned on the fifth side comprises a plurality of first protruding portions protruding towards the first transition touch sub-electrode; 
 an edge of the third transition touch electrode positioned on the sixth side comprises a plurality of second protruding portions protruding towards the second transition touch sub-electrode; 
 an edge of the first transition touch sub-electrode positioned on the fourth side comprises a plurality of first sunk portions; 
 an edge of the second transition touch sub-electrode close to the third transition touch electrode comprises a plurality of second sunk portions; and 
 the plurality of first protruding portions are correspondingly arranged in the plurality of first sunk portions, and the plurality of second protruding portions are correspondingly arranged in the plurality of second sunk portions. 
 
     
     
       13. The touch sensor according to  claim 12 , wherein the fourth conducting structure comprises a first conducting sub-structure and a second conducting sub-structure;
 the first conducting sub-structure extends along an edge of the third transition touch electrode positioned on the fifth side, and comprises a plurality of second bent structures; 
 the second conducting sub-structure extends along an edge of the third transition touch electrode positioned on the sixth side, and comprises a plurality of third bent structures; and 
 the plurality of second bent structures are correspondingly arranged in the plurality of first sunk portions, and the plurality of third bent structures are correspondingly arranged in the plurality of second sunk portions. 
 
     
     
       14. The touch sensor according to  claim 11 , wherein each of the first group of second touch electrodes in the plurality of second touch electrodes is separated by the first opening region into a third electrode portion and a fourth electrode portion;
 each of the third electrode portion and the fourth electrode portion comprises at least one of the second touch sub-electrodes; 
 the third electrode portion and the fourth electrode portion are positioned on both sides of the first opening region in the second direction; and 
 the first transition touch electrode is positioned between the third electrode portion and the fourth electrode portion in the second direction, and the third electrode portion and the fourth electrode portion are electrically connected with each other via the first transition touch electrode. 
 
     
     
       15. The touch sensor according to  claim 14 , wherein each of the second group of the second touch electrodes in the plurality of second touch electrodes is separated by a region between the first opening region and the second opening region into a fifth electrode portion and a sixth electrode portion;
 each of the fifth electrode portion and the sixth electrode portion comprises at least one of the second touch sub-electrodes; and 
 the third transition touch electrode is positioned between the fifth electrode portion and the sixth electrode portion in the second direction, and the fifth electrode portion and the sixth electrode portion are electrically connected with each other via the third transition touch electrode. 
 
     
     
       16. The touch sensor according to  claim 1 , wherein the plurality of first touch sub-electrodes, the plurality of second touch sub-electrodes, and the first transition touch electrode are positioned in the first electrode layer;
 the first conducting structure is positioned in the second electrode layer different from the first electrode layer; and 
 a surface of the first electrode layer is in direct contact with a surface of the second electrode layer. 
 
     
     
       17. The touch sensor according to  claim 1 , further comprising an intermediate region, a peripheral region at least partially surrounding the intermediate region, a plurality of first touch signal lines and a plurality of second touch signal lines;
 the first opening region, the plurality of first touch electrodes and the plurality of second touch electrodes are all positioned in the intermediate region; 
 the plurality of first touch signal lines are respectively electrically connected with the plurality of first touch electrodes, and extend from an edge of the intermediate region in the first direction to the peripheral region; and 
 the plurality of second touch signal lines are respectively electrically connected with the plurality of second touch electrodes, and extend from an edge of the intermediate region in the second direction to the peripheral region. 
 
     
     
       18. A touch sensor, comprising: a first opening region, a plurality of first touch electrodes, a plurality of second touch electrodes, and a first conducting structure,
 wherein a center of the first opening region and a center of the touch sensor do not coincide; 
 the plurality of first touch electrodes respectively extend along a first direction, and at least one of the plurality of first touch electrodes comprises a plurality of first touch sub-electrodes arranged side by side in the first direction and electrically connected with each other; 
 the plurality of second touch electrodes respectively extend along a second direction intersecting with the first direction, and at least one of the plurality of second touch electrodes comprises a plurality of second touch sub-electrodes arranged side by side in the second direction and electrically connected with each other; 
 the plurality of first touch electrodes are arranged side by side along the second direction, and the plurality of second touch electrodes are arranged side by side along the first direction; 
 the plurality of first touch sub-electrodes and the plurality of second touch sub-electrodes together at least partially surround the first opening region; 
 each of a first group of second touch electrodes in the plurality of second touch electrodes further comprises a first transition touch electrode; 
 the first transition touch electrode extends along the second direction, and partially surrounds the first opening region along the second direction; 
 the touch sensor has a first region, a second region and a third region sequentially arranged in the second direction; 
 at least part of the first transition touch electrode and the first opening region are positioned in the second region; 
 a resistance of the first transition touch electrode is greater than a resistance of the second touch sub-electrode in the first region; and 
 the first conducting structure is positioned on a surface of the first transition touch electrode, at least partially surrounds the edge of the first opening region, and is connected to the first transition touch electrode in parallel and electrically. 
 
     
     
       19. The touch sensor according to  claim 18 , wherein an area of a first touch sub-electrode positioned in the first region is less than an area of a first touch sub-electrode positioned in the third region, or an area of a second touch sub-electrode positioned in the first region is less than an area of a second touch sub-electrode positioned in the third region. 
     
     
       20. A display apparatus, comprising the touch sensor according to  claim 1 .